Piper PA-31 occurrences (1,051–1,100 of 1,340)
- 1980-11-05 — Private United States of America — N9044Y (hull loss)
- 1980-10-31 — N62858 (incident)
- 1980-10-01 — Aero Contractors — 5N-AKO (4 fatal)
- 1980-09-30 — Air Bahia — N3542X (2 fatal)
- 1980-09-24 — Mooney Aviation — G-CTHS (2 fatal)
- 1980-09-18 — N777EB (incident)
- 1980-09-10 — Culpeper Aviation — N6702L (1 fatal)
- 1980-09-04 — Companhia Textil Ferreira Guimaraes — PT-IAJ (6 fatal)
- 1980-08-29 — N228CH (incident)
- 1980-08-28 — Private United States of America — N398GT (2 fatal)
- 1980-08-20 — Group Lotus Car Companies — G-LCCO (1 fatal)
- 1980-08-20 — N4FT (incident)
- 1980-08-19 — Taxis Aéreos Uruguayos — CX-BMT (2 fatal)
- 1980-08-10 — V. G. Livingston — N27906 (2 fatal)
- 1980-07-25 — Air Pennsylvania — N5MS (3 fatal)
- 1980-07-25 — N6628L (incident)
- 1980-07-10 — Aircraft Finance and Leasing Company — N776SW (1 fatal)
- 1980-06-24 — Air Affaires Afrique — TJ-AFO (3 fatal)
- 1980-06-14 — N27896 (incident)
- 1980-06-04 — Air Activities — N7651L (incident)
- 1980-05-28 — Lake Aviation — N6492L (6 fatal)
- 1980-05-12 — N27754 (incident)
- 1980-05-04 — Junta Nacional de Carnes — LV-MOC (hull loss)
- 1980-04-25 — N94EM (incident)
- 1980-04-11 — Wekos Schrotthandels — D-IHRK (2 fatal)
- 1980-04-10 — Salvadorian Air Force - Fuerza Aérea Salvadoreña — FAS001 (3 fatal)
- 1980-03-28 — N719P (incident)
- 1980-03-21 — Eagle Commuter Airlines — N59932 (7 fatal)
- 1980-03-18 — N208SW (incident)
- 1980-03-13 — N6493L (incident)
- 1980-03-13 — N746CE (incident)
- 1980-03-12 — N26CA (incident)
- 1980-03-07 — Ecuavia — HC-AQC (2 fatal)
- 1980-03-06 — Airmore Aviation — G-BGIN (incident)
- 1980-02-29 — N3540T (incident)
- 1980-02-29 — Amick Airways — N77QC (hull loss)
- 1980-02-01 — Instituto Nacional de Tecnología Agropecuaria (INTA) — LV-MYY (3 fatal)
- 1980-01-18 — Eastern Caribbean Airways — N25VM (hull loss)
- 1979-12-18 — Eastern Flying Services — C-GLFS (2 fatal)
- 1979-12-11 — N7511L (incident)
- 1979-12-02 — Coca-Cola Company — N444JW (hull loss)
- 1979-12-01 — Refinadora Costarricense de Petróleo (RECOPE) — TI-RCP (incident)
- 1979-11-25 — Thomas Rex Long — N20KA (hull loss)
- 1979-11-21 — N6569L (incident)
- 1979-11-07 — N405CA (incident)
- 1979-11-02 — Bankair — N66893 (5 fatal)
- 1979-10-09 — Coal Baron — N9277Y (1 fatal)
- 1979-10-08 — Comair (Delta Connection) — N6642L (8 fatal)
- 1979-09-29 — N27678 (incident)
- 1979-09-25 — N7697L (incident)